Your Mounjaro Leaflet: What It Contains and Why It Matters

Every Mounjaro pack includes a printed patient information leaflet (PIL), and the same document is available in full on the electronic Medicines Compendium at medicines.org.uk. The leaflet is a legal requirement and reflects the approved product information — it is the definitive source for your pen, not a summary or paraphrase.

Key sections you will find in the leaflet

• What Mounjaro is and what it is used for — a factual description of tirzepatide as a dual GIP and GLP-1 receptor agonist, and the conditions for which it is prescribed.
• What you need to know before using Mounjaro — contraindications, warnings, interactions with other medicines, and special situations such as pregnancy or breastfeeding. If any of these apply to you, discuss them with your prescriber or doctor before your next dose.
• How to use Mounjaro — the dose schedule, injection instructions, storage requirements, and what to do if you miss a dose. Any questions about your specific dose or schedule belong with your prescriber; the leaflet gives the general framework, but your prescriber sets the plan that applies to you.
• Possible side effects — a structured list of commonly reported effects (such as nausea, diarrhoea, and constipation) alongside rarer reactions, each categorised by how often they are reported. The leaflet also explains how to report side effects to your national reporting scheme — for example, the UK's Yellow Card scheme — and to your healthcare professional.
• Storage and handling — how to store unused pens (check your leaflet directly, as conditions such as refrigeration requirements are product-specific) and what to do with used pens and packaging.

Where to find the full patient information

If the printed leaflet is missing from your pack, the up-to-date version is available via the Mounjaro patient information resource on this site, or directly from the electronic Medicines Compendium. Always use the most current version, as leaflets are updated when new safety information becomes available.

For a broader overview of Mounjaro — including how it works, what to expect, and how to get the most from your treatment — visit our complete Mounjaro guide.

Your leaflet tells you what to do; GLP Trackr helps you keep a record of what you actually did — and how you felt along the way. The most directly relevant feature here is side-effect tracking: whenever you notice something the leaflet lists as a possible effect — nausea, fatigue, digestive discomfort — you can log it in the app with a note on timing, severity, and context. Over days and weeks, patterns often emerge that are genuinely useful to share with your prescriber at your next appointment.

The app also handles dose and injection logging, so every injection is recorded with its date, dose strength, and site. If you ever need to look back and confirm when you last injected — something the leaflet advises you to track — it is there in one place rather than relying on memory.

One feature that pairs well with leaflet guidance is the doctor report: a clear summary of your logged journey that you can bring to a consultation, making it easier for your prescriber to see the full picture and make any adjustments they think are right for you.

GLP Trackr is an informational and tracking tool, not a substitute for the guidance in your leaflet or the advice of your prescriber. If anything in the leaflet raises questions — about a side effect, an interaction, or your dose — contact your healthcare professional promptly. They know your full medical history in a way no app can.

Curious about what counts as a tablet form of this medicine? See our page on Mounjaro tablets for factual context.

Ready to put your leaflet guidance into practice with a daily log? GLP Trackr is free to try for seven days — available now on the App Store and Google Play.